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5. 3D ray tracing part 1 | Rendering | Computer animation | Khan Academy

Extends the ray equation from two dimensions into three, the space Pixar's scenes actually live in. Covers how coordinates and vectors change once a z-axis is added.

Khan Academy Labs · 4 min · Advanced · VFX · VFX · 2016

What you take away

Extend a 2D ray equation into 3D by adding a third coordinate.

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